Thermostat



FIG. 1 is a front perspective view of a thermostat in accordance with apreferred embodiment of the design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a rear perspective view thereof.

The broken lines in the figures are for the purpose of showingenvironmental structure and form no part of the claimed design.

CLAIM The ornamental design for a thermostat, as shown and described.